Patent Number: 6,251,254

Title: Electrode for chromium plating

Abstract: An electrode adapted for chromium plating from trivalent chromium baths which comprises a conductive base, an electrode material layer comprising iridium oxide formed thereon, and a porous layer formed on the surface of the electrode material layer. The porous can comprise an oxide containing at least one element selected from the group consisting of silicon, molybdenum, titanium, tantalum, zirconium, and tungsten. Use of this electrode for chromium plating reduces the oxidation of trivalent chromium into hexavalent chromium.

Inventors: Katoh; Masaaki (Kanagawa, JP), Nara; Miwako (Kanagawa, JP), Matsumoto; Yukiei (Kanagawa, JP), Ogata; Setsuro (Kanagawa, JP)

Assignee: Permelec Electrode Ltd.

International Classification: C25D 17/10 (20060101); C25D 003/06 ()

Expiration Date: 06/26/2018